It seems you are from India.
Anyway I am too. You have curiosity that how to earn more from hubpages. Is it?
Yes it is true. You can earn big here. But require consistent effort. Here is the steps.
1. Prepare enough quality hubs that people really want on web.
2. You ,must have ability to bring traffic to your hubs in order to earn high.
3. Yes, Google adsense account activation is necessary to earn from traffic.
When you get Google adsense account active, you will be paid for each click of ads in your hubs.
You can visit hubpages learning center for more details.